Home / 1,969,783.80-2,952,488.70-771,307.80

Finding the Fourth Proportional to 1,969,783.80, 2,952,488.70 and 771,307.80

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Solution

The fourth proportional to 1,969,783.80, 2,952,488.70 and 771,307.80 is: 1,156,105.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969,783.80 : 2,952,488.70 = 771,307.80 : x
  2. Step 2: Convert to fraction form
    1,969,783.80/2,952,488.70 = 771,307.80/x
  3. Step 3: Cross multiply
    1,969,783.80x = 2,952,488.70 × 771,307.80
  4. Step 4: Simplify right side
    1,969,783.80x = 2,277,277,563,721.86
  5. Step 5: Solve for x
    x = 2,277,277,563,721.86/1,969,783.80
  6. Step 6: Final answer
    x = 1,156,105.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.